7.2 High
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
6.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.7 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
14.2%
A double free vulnerability was discovered in libvirt, a toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes).
For Debian 9 stretch, this problem has been fixed in version 3.0.0-4+deb9u5.
We recommend that you upgrade your libvirt packages.
For the detailed security status of libvirt please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/libvirt
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2395-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('compat.inc');
if (description)
{
script_id(141137);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/16");
script_cve_id("CVE-2020-25637");
script_name(english:"Debian DLA-2395-1 : libvirt security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
script_set_attribute(attribute:"description", value:
"A double free vulnerability was discovered in libvirt, a toolkit to
interact with the virtualization capabilities of recent versions of
Linux (and other OSes).
For Debian 9 stretch, this problem has been fixed in version
3.0.0-4+deb9u5.
We recommend that you upgrade your libvirt packages.
For the detailed security status of libvirt please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/libvirt
NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues.");
script_set_attribute(attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2020/10/msg00004.html");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/stretch/libvirt");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/libvirt");
script_set_attribute(attribute:"solution", value:
"Upgrade the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-25637");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/10/06");
script_set_attribute(attribute:"patch_publication_date", value:"2020/10/02");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/10/05");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnss-libvirt");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvirt-clients");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvirt-daemon");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvirt-daemon-system");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvirt-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvirt-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvirt-sanlock");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvirt0");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Debian Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include("audit.inc");
include("debian_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (deb_check(release:"9.0", prefix:"libnss-libvirt", reference:"3.0.0-4+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"libvirt-clients", reference:"3.0.0-4+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"libvirt-daemon", reference:"3.0.0-4+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"libvirt-daemon-system", reference:"3.0.0-4+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"libvirt-dev", reference:"3.0.0-4+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"libvirt-doc", reference:"3.0.0-4+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"libvirt-sanlock", reference:"3.0.0-4+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"libvirt0", reference:"3.0.0-4+deb9u5")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | libvirt-daemon-system | p-cpe:/a:debian:debian_linux:libvirt-daemon-system |
debian | debian_linux | libvirt-clients | p-cpe:/a:debian:debian_linux:libvirt-clients |
debian | debian_linux | libvirt-daemon | p-cpe:/a:debian:debian_linux:libvirt-daemon |
debian | debian_linux | libvirt-dev | p-cpe:/a:debian:debian_linux:libvirt-dev |
debian | debian_linux | libvirt-sanlock | p-cpe:/a:debian:debian_linux:libvirt-sanlock |
debian | debian_linux | libnss-libvirt | p-cpe:/a:debian:debian_linux:libnss-libvirt |
debian | debian_linux | 9.0 | cpe:/o:debian:debian_linux:9.0 |
debian | debian_linux | libvirt-doc | p-cpe:/a:debian:debian_linux:libvirt-doc |
debian | debian_linux | libvirt0 | p-cpe:/a:debian:debian_linux:libvirt0 |
7.2 High
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
6.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.7 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
14.2%